We use a unique rich newly built data set for German manufacturing enterprises to investigate the relationship between product diversification and the stability of sales and employment. We find that contrary to portfolio theoretic considerations more diversified firms exhibit a higher...

We estimate changes in the volatility of firm-level sales, earnings and employment growth of US firms. Our method differs from existing measures for firm-level sales and employment volatility in that it not only captures longer-run changes in volatility, but also measures cyclical changes in...

We document how firm-specific volatility in sales, earnings and employment growth evolved year by year in Japan. Our volatility measure also indicates the evolution of firm turnover. We find that patterns in firm-specific volatility have changed when macroeconomic circumstances have. Firm...